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Restrictions on creating snapshots for EVS

Created: Feb 25, 2022 08:21:27Latest reply: Mar 15, 2022 05:11:24 198 3 0 0 0
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Hello, friend!

I failed to create an EVS snapshot. What are the constraints for creating an EVS snapshot?

Thanks in advance!

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Featured Answers
olive.zhao
Admin Created Feb 25, 2022 08:27:27

Hello, friend!

  • If backend storage is one of OceanStor V3/V5 or OceanStor Dorado V3 series, it is necessary for the administrator to import the HyperSnap license on the device in advance.

  • Snapshots can be created only for disks in the Available or In-use state.

  • A snapshot name cannot be the same as that of the prefix of the temporary snapshot created by the backup service (VBS or CSBS), the disaster recovery service (CSDR, CSHA, or VHA), or the VM snapshot.

  • Snapshots created using the EVS console consume the capacity quota instead of quantity quota of EVS disks.

  • Temporary snapshots created by the backup service (VBS or CSBS) or the disaster recovery service (CSDR, CSHA, or VHA) do not consume EVS disk quotas. Snapshots created using the VM snapshot function do not consume EVS disk quotas.

  • Snapshots created using the EVS console, temporary snapshots created by DR&backup services, and snapshots created using the VM snapshot function consume backend storage capacity. If a large number of snapshots are created, contact the administrator to set the thin provisioning ratio of backend storage to a large value, preventing EVS disk provisioning failures caused by excessive snapshots.

  • If backend storage of the disk is heterogeneous storage, snapshots can be created.

  • In the VRM or VMware scenario, no snapshots can be created for shared EVS disks.

  • If an EVS disk is created from data storage of the VIMS type in the VRM scenario and the EVS disk has been attached to an ECS, a snapshot can be created for the EVS disk only when the ECS is in the stopped state.

  • In the VMware scenario, no snapshots can be created for an EVS disk that has been attached to an ECS.

  • No snapshots can be created for disks that have expired.

  • No snapshots can be created for disks that have been soft deleted.

  • Snapshots cannot be created when the disk status is Reserved or Maintenance.

  • No snapshots can be created for disks created using vAPP.

  • If a task for creating a snapshot fails, the task is automatically deleted.

Have a nice day!

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Saqibaz
Saqibaz Created Mar 15, 2022 05:11:18 (0) (0)
 
All Answers
olive.zhao
olive.zhao Admin Created Feb 25, 2022 08:27:27

Hello, friend!

  • If backend storage is one of OceanStor V3/V5 or OceanStor Dorado V3 series, it is necessary for the administrator to import the HyperSnap license on the device in advance.

  • Snapshots can be created only for disks in the Available or In-use state.

  • A snapshot name cannot be the same as that of the prefix of the temporary snapshot created by the backup service (VBS or CSBS), the disaster recovery service (CSDR, CSHA, or VHA), or the VM snapshot.

  • Snapshots created using the EVS console consume the capacity quota instead of quantity quota of EVS disks.

  • Temporary snapshots created by the backup service (VBS or CSBS) or the disaster recovery service (CSDR, CSHA, or VHA) do not consume EVS disk quotas. Snapshots created using the VM snapshot function do not consume EVS disk quotas.

  • Snapshots created using the EVS console, temporary snapshots created by DR&backup services, and snapshots created using the VM snapshot function consume backend storage capacity. If a large number of snapshots are created, contact the administrator to set the thin provisioning ratio of backend storage to a large value, preventing EVS disk provisioning failures caused by excessive snapshots.

  • If backend storage of the disk is heterogeneous storage, snapshots can be created.

  • In the VRM or VMware scenario, no snapshots can be created for shared EVS disks.

  • If an EVS disk is created from data storage of the VIMS type in the VRM scenario and the EVS disk has been attached to an ECS, a snapshot can be created for the EVS disk only when the ECS is in the stopped state.

  • In the VMware scenario, no snapshots can be created for an EVS disk that has been attached to an ECS.

  • No snapshots can be created for disks that have expired.

  • No snapshots can be created for disks that have been soft deleted.

  • Snapshots cannot be created when the disk status is Reserved or Maintenance.

  • No snapshots can be created for disks created using vAPP.

  • If a task for creating a snapshot fails, the task is automatically deleted.

Have a nice day!

View more
  • x
  • convention:

Saqibaz
Saqibaz Created Mar 15, 2022 05:11:18 (0) (0)
 
Saqibaz
Saqibaz Created Mar 15, 2022 05:11:24

Good answer
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